(510632).,,68cm,.,,.[1]3.04.5cm,,.,..,,,,.,,[2]:,;,.Gagner[3]1996,Hscher[4]1997,.,.1CO2,CO2.,CO2CO2,CO2,CO2,,CO2,[23].CO2.CO210mmHg,10mmHg,,.CO2[5,6]:(10mmHg)PaCO2,,;CO215mmHg,,,PaCO2pH;CO220mmHg,,,.,10mmHg,10mmhg,15mmhg.2,.2.1..(1)[7].2.53.0cm,,,,.:CO2,,,.(2)[23].0.5cm,,,5mm,CO2,12mmHg,,810mmHg,5mm00,,5mm300,2mm,2mm,10mm,.,,CO2.(3).Bellantone[8]1999,VAET(video-assistedendo2scopicthyroidectomy)[9]MIVAT(minimallyinvasivevideo-assistedthyroidectomy)[10].,2.0cm1.52.0cm,,3.0cm,23.CO2;,,;,;.23cm,.,,.,.2.2.543200285.(1).Shimizu[11]1999,VANS(Video-AssistedNeckSurgery).,,,,,CO2.:,1.5cm,,0.5cm,,,5mm,.,1.5cmKirschner,L,.KitanoH[12]2002:1.0cm,12cmTrocar,,;,12cmTrocar,,.,,,,.(2).Ikeday[13,22]2000.,,,,4mmhgCO2,.:,,3cm,,VeinHarvest,,12cmTrocar,,CO24mmHg,Trocar.,2Trocar,,.,,.(3).OhgamiM[14]20002.,,,,,.:1.5cm,,,CO26mmHg,0.5cm,Trocar,,,,,.,CO2.,,;,.33.1,,,.3.2.3.3.[10]:(1);(2);(3);(4),.,,.,.,,[15]94.8%.,.,,.,[9,25],.,,[9].,,,,.[10,15,16]:1.;2..,,10.7%(3/28)[15].4Miccoli[10]1998200067,.,.,,.:(1)3cm;(2)20mL;(3);(4).:(1);(2);(3);(4).,(Graves),.,643JournalofModernClinicalMedicalBioengineering2002,Vol.8,No.53cm.Ta-SenYeh[9]163.5cm8.0cm(5.8cm).,5cm,,,.,,5cm,8cm.,.Ta-SenYeh[9],,.:,;,,,,,..Miccoli[10]12(T1),,,,,,.[11,17].Bellantone[17]6.Graves,[12,18],,.Yamamoto[18]12Graves,259.8min,1.5[10,17-20,24]CO2..,.6,,,,.,,,[7].,,,,,[21].,.,,..CO2CO2.CO2(610mmHg)CO2[23].,Ikeday[13]19212min();25,146min(26),Miccoli[10]67,35min120min(73.6min),70min130min(109.6min),.,.,,.?,,,.,..,,,,.743200285